Permutation-lock.



K S.`BLAZEK.

PERMUTATION LOCK.

APPLICATION FILED MAR. 23. 1915.

Patented Feb. 1, 1916.

THE COLUMBIA PLANDGRAPH co., WASHINMON, c.

srAEN g STEPHAN BLAZK, or NEW YORK, N. Y., AssIGNoR 0E ONE-THIRD To"SAMUEL SHERMAN, or NEW YORK, N. Y. p v

rERMUrA'rIoN-Loon.

Specification of Letters Patent. PatentediFeb.1, 1916.

` Application led March 23, 1915. Serial No. 16,332.-

'To all whom t may concern :v

Be it known that I, STEPHAN BLAZK, a citizen of the United States, and aresident of the city of New York, borough of Manhattan, in the countyand State of New '.York, have invented a new and ImprovedPermutation-Lock, of which 'the following is a full, clear, and exactdescription. l

The object of the invention is to provide a new and improved permutationlock more f the bolt and to prevent disengagement and bolt intoretracted position, the bolt having unlockingunless a person is in thepossession of the combination of the lock. p

In order to produce the desired result, use is made of a spring-pressedbolt and permutation mechanism for moving said movement whollyindependent of the said controlling mechanism to allow of engaging thekeeper with the bolt at'the time the controlling mechanism is in lockingposition. A practical embodiment ofthe invention is represented in theaccompanying drawings forming a part of this specification,in whichsimilar characters of reference'indicate corresponding parts in all theviews.

Figure l is a perspective view of the permutation lock as applied;` Fig.2 is an enlarged longitudinal section of the same; Fig. 3 is an invertedplan view of the same Y with parts broken out; Fig. 4: is a crosssection of the same on the lineJ 4 4 of Fig. 3'; and Fig. 5 is a reducedplan viewl of the lock detached `from The casing A of the lock issecured to 'a part B and the topof the casing A is prol vided with anelongatedfslot A through.

which extends spindle C provided at its outer endwith a' knob C underthe control of the user for turning the spindle C land the part on whichit is used.

provided 4withy a suitable graduation, the marks of which are adapted toindicate onV .a pointer E forming part of the top plate of the lockcasing A. The spindle C extends through a slot F formed lengthwise inthe locking bolt F arranged on the under side of the top of the casing Aand provided with avpinV F2'pressed on by a spring F3 attached tothecasing AA and serving to hold `the bolt F normally in shoteout orlocking position. The forward end of the bolt F is.

adapted to be-engaged by a keeper G attached to or formed on the freeend of a adapted to engage the outer end of the boltV F to push thelatter rearwardly against the tension of its spring F3 to allow thekeeper G to enter the casing A. When this has been done, thebolt F isreturned to normalv locking position by the action of its spring F2,that is, it engages the keeper G so as to hold the latter in lockedposition.

The pin F2 of the bolt F extends through a-sl'ot H formed lengthwise ina slide H secured to the spindle C to move bodily with the same. Therear end of the slide H is providedwith a notch H2' and anotch F4 in theslot A and the bolt F and the slide. Hv being guided on the post I,'itis evident that the bolt F and the s 11de H are" guided in the directionof the length of the bolt and are thus held against turning movement.'

underlies the bolt F and its forward end is provided with acut-out'portion H3 to prevent the keeper G from engaging the slide H andto allow the bolt Fv to readily engage the keeper. Y

On the inner end of the spindle C is secured ,a disk tumbler J and onthe said The 'slide H spindle C between this tumbler J and the slide Hare arranged tumblers J and J2 mounted to turn loosely on the spindle C.The tumbler J is provided with a pin J3 eX- tending into segmental slotsJ4, J5 formed in the loose tumblersvJ and J2. The tumblers J, J and J 2are provided at their peripheral faces withnotches J, J7 and Js adaptedto register with each other and to register with the post to allow ofmoving the spindle C, the tumblers J, J and J2, the slide H and the boltF in a rearward direction with a view to retract the bolt F, that is, tomove the latter out of engagement with the keeper G. The slots J 4, J 5are of different length so that when the spindle C is turned in onedirection its pin J3 travels in the slots J 4, J 5 until it reaches oneend of the slot J 4 to carry the tumbler J along on further turning ofthe spindle C in the same direction and until the notch J 7 of thetumbler J is in register with the post I. The spindle C is now turned inthe opposite direction until the pin J3 engages the corresponding end ofthe slot J5 to carry the tumbler J2 along until its notch J8 is inregister with the post I and then the spindle C is again turned in theopposite direction until the notch J 3 of the tumbler J is in registerwith the post l. It is understood that this forward and backward turningmovement of the spindle C is governed by the combination of the lock andindicated on the dial D by the pointer 1E. It is further understood thatwhen the tumblers have reached the registering position, the user pushesthe knob C rearwardly to cause the slide H to move rearwardly with thespindle C. This movement of the slide H causes a like movement of thepin F2 and consequently of the bolt F to disengage the latter from thekeeper G and thus allow of'swinging the keeper out of the casing A tothe parts B and B. After the keeper G is disengaged from the bolt F theoperator turns the knob C and then releases the same to allow the springF3 to return the bolt F and slide H to normal outermost position. Theturning of the knob C moves the notches J 3, J7 and J 8 of the tumblersout of register with the post I so that the spindle C is held againstrearward movement as the peripheral faces of one, two or all of thetumblers abut against the post I and hence prevent backward movement ofthe spindle C. When the several parts of the lock are in this positionthe keeper G can be rengaged with the bolt F by swinging the hasp G intoclosed position. When this takes place the keeper G pushes the bolt Fback against the tension of its spring F3, as previously explained, andwhen the keeper G has finally entered the casing A the bolt returns tolocking position, that is, engages the keeper 'and J2 their peripheralfaces are prefer ably notched and engaged by springs K and K attached tothe guide H so as to move with the same together with the tumblers.

Having thus described my invention, l claim as new and desire to secureby Letters Patent:

1. A permutation lock provided with a spring-pressed bolt normally heldby its spring in locking position, mechanism for moving the bolt intounlocking position, the said mechanism having a slide on one side of thebolt and connected therewith to permit the bolt to have limited movementthereon, a spindle secured to the slide for operating it, and means forguiding the bolt, slide and spindle on movement of the parts in thedirection of the length of the bolt.

2. A permutation lock, comprising a sliding and spring pressed bolt, aslide, means connecting the bolt and slide to permit the bolt to havelimited' movement on the slide, a spindle secured to the slide, tumblersmounted on the spindle and connected with each other to be Operated bythe spindle, the tumblers having notches in their peripheries, and apost adjacent the tumblers and with which the notches of the tumblersare adapted to register,

3. A permutation lock, comprising a spindle having a knob, atumblerattached to the spindle, tumblers loose on the spindle and controlled bythe said fixed tumbler, the tumblers having peripheral notches adaptedto register with each other, a bolt having an elongated slot throughwhich extends the said spindle, a pin on the said bolt, a springpressing the said pin, a slide moving with the said spindle and having aslot engaged by the said pin, and a ixeyd guide post for the said boltand slide to slide on, the post forming an abutment for the said tumblernotches and the latter when in register being also in register with thesaid post to allow bodily movement of the bolt, slide and tumblers onmoving the spindle in the direction of the length of the bolt.

4. A permutation lock provided with a sliding and spring pressed bolt, aslide upon which the bolt has limited sliding movement, a spindlesecured to the slide, a tumbler fixed on the spindle and provided with apin, tumblers mounted loosely on the said spindle and provided withsegmental slots engaged by the said pin, the said fixed and loosetumblers having notches at their peripheral faces, and a, fixed postextending across the name to this specification in the presence ofperipheral faces of the tumblers and adapttwo subscribing Witnesses.

ed to register. With the said notches at the STEPHAN BLAZK. time thelatter are in register With each Witnesses: Y 5 other. THEO. G. HosTER,

In testimony whereof I have signed my PHILIP D. RoLLHAUs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

